Kent State, USC, and clemson
Us fought against Italy, Germany and Japan.
World war three has not been fought yet.
Fought
Great Britain and France
the two counties that went to war were Germany and the US.
The three powers that the US fought against during World War II were Germany, Japan, and Italy
No British counties fought against each other in ww1 England, Wales And Scotland All Fought Against The Germans/Austro-Hungarians In The First World War.
World war I, World war II, Korean war, and Vietnam war.
The Civil War World War 1 The Revolutionary War
Side 1: Germany, Italy and Japan Side 2: UK, France and USA.
World War III has not yet been fought. With any luck, it never will be. There is an old saying that "World War IV will be fought with sticks and stones, because World War III will destroy our technology". I hope we never get to either.
Canadians, Indians and ANZAC's(australians and New Zealanders) all fought for the British empire in world war 1.